A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6130-00-617-3087
NSN 6685-01-590-5155
NSN 5945-01-556-0552
NSN 4140-00-126-4685
NSN 5855-00-058-1293
NSN 5920-01-433-2261
NSN 5920-01-437-5916
NSN 5945-01-094-6343
NSN 6240-01-406-5345
NSN 5915-00-189-4355
NSN 5965-01-288-4736
NSN 6150-01-098-5531